Cita APA (7th ed.)
Aveni, A. F., & Gingerich, O. Skywatchers of Ancient Mexico. University of Texas.
Cita Chicago (17th ed.)
Aveni, Anthony F., i Owen Gingerich. Skywatchers of Ancient Mexico. Austin, EUA: University of Texas.
Cita MLA (9th ed.)
Aveni, Anthony F., i Owen Gingerich. Skywatchers of Ancient Mexico. University of Texas.
Atenció: Aquestes cites poden no estar 100% correctes.